Use enum for opt.image_bg, rename --image-bg default to --image-bg checks

4 files changed, 14 insertions, 7 deletions

diff --git a/src/feh.h b/src/feh.h
index 6604f66..4de4632 100644
--- a/src/feh.h
+++ b/src/feh.h
@@ -102,6 +102,8 @@ enum slide_change { SLIDE_NEXT, SLIDE_PREV, SLIDE_RAND, SLIDE_FIRST, SLIDE_LAST,
 	SLIDE_JUMP_BACK
 };
 
+enum image_bg { IMAGE_BG_CHECKS = 0, IMAGE_BG_BLACK, IMAGE_BG_WHITE };
+
 #define INPLACE_EDIT_FLIP   -1
 #define INPLACE_EDIT_MIRROR -2
 
diff --git a/src/options.c b/src/options.c
index fe0cf87..cf32bb0 100644
--- a/src/options.c
+++ b/src/options.c
@@ -58,7 +58,6 @@ void init_parse_options(int argc, char **argv)
 	opt.thumb_redraw = 10;
 	opt.menu_font = estrdup(DEFAULT_MENU_FONT);
 	opt.font = NULL;
-	opt.image_bg = estrdup("default");
 	opt.menu_bg = estrdup(PREFIX "/share/feh/images/menubg_default.png");
 	opt.menu_style = estrdup(PREFIX "/share/feh/fonts/menu.style");
 
@@ -606,8 +605,14 @@ static void feh_parse_option_array(int argc, char **argv, int finalrun)
 			weprintf("The --menu-bg option is deprecated and will be removed by 2012");
 			break;
 		case 'B':
-			free(opt.image_bg);
-			opt.image_bg = estrdup(optarg);
+			if (!strcmp(optarg, "checks"))
+				opt.image_bg = IMAGE_BG_CHECKS;
+			else if (!strcmp(optarg, "white"))
+				opt.image_bg = IMAGE_BG_WHITE;
+			else if (!strcmp(optarg, "black"))
+				opt.image_bg = IMAGE_BG_BLACK;
+			else
+				weprintf("Unknown argument to --image-bg: %s", optarg);
 			break;
 		case 'D':
 			opt.slideshow_delay = atof(optarg);
diff --git a/src/options.h b/src/options.h
index 2ca655e..ae3a707 100644
--- a/src/options.h
+++ b/src/options.h
@@ -70,6 +70,7 @@ struct __fehoptions {
 	unsigned char cycle_once;
 	unsigned char hold_actions[10];
 	unsigned char text_bg;
+	unsigned char image_bg;
 
 	char *output_file;
 	char *output_dir;
@@ -84,7 +85,6 @@ struct __fehoptions {
 	char *menu_font;
 	char *customlist;
 	char *menu_bg;
-	char *image_bg;
 	char *menu_style;
 	char *caption_path;
 	char *start_list_at;
diff --git a/src/winwidget.c b/src/winwidget.c
index 8851f90..bc530ee 100644
--- a/src/winwidget.c
+++ b/src/winwidget.c
@@ -350,7 +350,7 @@ void winwidget_setup_pixmaps(winwidget winwid)
 			if (winwid->gc == None) {
 				XGCValues gcval;
 
-				if (!strcmp(opt.image_bg, "white"))
+				if (opt.image_bg == IMAGE_BG_WHITE)
 					gcval.foreground = WhitePixel(disp, DefaultScreen(disp));
 				else
 					gcval.foreground = BlackPixel(disp, DefaultScreen(disp));
@@ -626,9 +626,9 @@ Pixmap feh_create_checks(void)
 		if (!checks)
 			eprintf("Unable to create a teeny weeny imlib image. I detect problems");
 
-		if (strncmp(opt.image_bg, "white", 5) == 0)
+		if (opt.image_bg == IMAGE_BG_WHITE)
 			gib_imlib_image_fill_rectangle(checks, 0, 0, 16, 16, 255, 255, 255, 255);
-		else if (strncmp(opt.image_bg, "black", 5) == 0)
+		else if (opt.image_bg == IMAGE_BG_BLACK)
 			gib_imlib_image_fill_rectangle(checks, 0, 0, 16, 16, 0, 0, 0, 255);
 		else {
 			gib_imlib_image_fill_rectangle(checks, 0, 0, 16, 16, 144, 144, 144, 255);